XSD - Miscellaneous Data Types
XSD has a few other important data types, such as Boolean, binary, and anyURI.
<xs:boolean> data type
The <xs:boolean> data type is used to represent true, false, 1 (for true) or 0 (for false) value.
<xs:boolean> Example
Element declaration in XSD −
<xs:element name = "pass" type = "xs:boolean"/>
Element usage in XML −
<pass>false</pass>
Binary data types
The Binary data types are used to represent binary values. Two binary types are common in use.
base64Binary − represents base64 encoded binary data
hexBinary − represents hexadecimal encoded binary data
<xs:hexbinary> Example
Element declaration in XSD −
<xs:element name = "blob" type = "xs:hexBinary"/>
Element usage in XML −
<blob>9FEEF</blob>
<xs:anyURI> data type
The <xs:anyURI> data type is used to represent URI.
<xs:anyURI> Example
Element declaration in XSD −
<xs:attribute name = "resource" type = "xs:anyURI"/>
Element usage in XML −
<image resource = "http://www.tutorialspoint.com/images/smiley.jpg" />
Numeric Data Types
Following is the list of commonly used numeric data types.
| S.No. | Name & Description |
|---|---|
| 1. | byte A signed 8 bit integer |
| 2. | decimal A decimal value |
| 3. | int A signed 32 bit integer |
| 4. | integer An integer value |
| 5. | long A signed 64 bit integer |
| 6. | negativeInteger An integer having only negative values (..,-2,-1) |
| 7. | nonNegativeInteger An integer having only non-negative values (0,1,2,..) |
| 8. | nonPositiveInteger An integer having only non-positive values (..,-2,-1,0) |
| 9. | positiveInteger An integer having only positive values (1,2,..) |
| 10. | short A signed 16 bit integer |
| 11. | unsignedLong An unsigned 64 bit integer |
| 12. | unsignedInt An unsigned 32 bit integer |
| 13. | unsignedShort An unsigned 16 bit integer |
| 14. | unsignedByte An unsigned 8 bit integer |
Restrictions
Following types of restrictions can be used with Miscellaneous data types except on boolean data type −
- enumeration
- length
- maxLength
- minLength
- pattern
- whiteSpace